Markets were called to open lower based on macro weakness and rain in the forecast for the U.S. Plains and parts of Russia. That outlook held true but selling in wheat quickly accelerated and kept corn trade muted. Wheat triggered sell-stops on its downside move and funds were net sellers for the day. The soy complex, however, shrugged off the grains’ weakness (helped, in part, by bear corn or wheat vs. soybean spreads) and climbed higher.  Global grain trading firms are increasingly worried about farmers defaulting on forward contracts for the 2020/21 crop. As noted in more detail in this week’s MERCOSUR Regional Analysis and European Market Analysis from WPI, firms are especially concerned about Argentine and Ukrainian f...